About the Author

Roger E. Olson is Foy Valentine professor of Christian theology and ethics at Baylor University. A past president of the American Theological Society (Midwest Division), Olson has been the co-chair of the Evangelical Theology Group of the American Academy of Religion for two years. An expert in historical theology, he is a frequent preacher, teacher and speaker for local churches and organizations. Samuel S. Hill, Professor of Religion at the University of Florida is recognized as an authority in American denominationalism. Hill has revised and edited the Handbook of Denominations since 1985.